Match the items on the right to the items on the left:
Check
As the cooling fans run, the forced air (output of the cooling system) decreases
???
the control equipment.
the transformer.
rising due to load.
the temperature of the transformer.
to cool down the transformer.
When the temperature (process variable) comes down below a preset value, the control switch of fans trip and fans stop supplying forced air to
???
the control equipment.
the transformer.
rising due to load.
the temperature of the transformer.
to cool down the transformer.
After that, as there is no cooling effect of fans, the temperature of the transformer again starts
???
the control equipment.
the transformer.
rising due to load.
the temperature of the transformer.
to cool down the transformer.
Again when during rising, the temperature crosses the preset value, the fans again start rotating
???
the control equipment.
the transformer.
rising due to load.
the temperature of the transformer.
to cool down the transformer.
Theoretically, we assume that there is no lag in
???
the control equipment.
the transformer.
rising due to load.
the temperature of the transformer.
to cool down the transformer.
Check
OK
